Burner.



J. WEINTZ.

BURNER.

APPLICATION FILED mm. 12, 1912.

1,@'?5,742. Patented Oct. 14, 1913.

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BURNER.

APPLICATION FILED DEC. 12, 1012.

11,675,742. Patented 001. 11, 1913.

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Specification 013 Letters Patent.

,Patented Get. 14, 1913,

Application filed December 12, 1912. Seria1Hn.736,296.

To all whom it may concern:

Be it known that I, JAcon Wnmrz, a citizen of the United States, and aresident of Cleveland, county of Cuyahoga, and State of Qhio, haveinvented a new and useful Improvement in Burners, of which the followingis a specification, the principle of the invention being hereinexplained and the best mode in which I have contemplated applying thatprinciple, so as to distinguish it from other inventions.

The present invention relates to burners, and its particular'object isthe provision of an oil burner in which the combustible mixture may beclosely regulated.

To the accomplishment of this and related ends, said invention, then,consists of the means hereinafter fully described and particularlypointed out in the claims.

The annexed drawings and the following anism embodying the invention,such disclosed means constituting, however, but one of variousmechanical forms in which the principle of the invention may be used.

In said annexed drawings :Figure 1 is a vertical section of a burnerembodying the invention; Fig. 2 is a section on the line AA of Fig. 1,the line B-B indicating the plane of the section of Fig. 1;- Fig. 3 is avertical section of another form, of burner embodying the invention;Fig. 4 is a section on the line CC of Fig. 3; and Fig. '5 is a sectionon the line DD of Fig. 4. Referring first to Figs. land 2, the burnercomprises asuitable casing 1 provided with a nozzle 2 communicating atits inner end with an air inlet 3. The nozzle contracts in size towardits mouth 4, and in its preferable form it is circular in cross-sectionand contracts gradually toward the mouth. The air inlet may becontrolled by a suitable valve such as gate 5.

A tube 6 is slidably mounted in the casing 1 and extends into the nozzle2, the passage -7 through the tube being connected with an oil inlet 12which is provided with a strainer 13 if desired. At the outer end oi'thetube adjacent the-nozzle mouth 4 is a battle 8, which is of the generalform of a segment of a sphere, and the passage 7 opens outwardly aroundthe baffle through a plurality of passages 9. The passage through thetube is controlled by a needle valve 1 1)- operated by an exteriorhandwheel ll.

A screw 14 is rigidly secured to the casing 1, and engaging it is anut15. connected with the tube 6, preferably by a pair. of apertured ears16. At its outer end adjacent the nozzle mouth.4, and surrounding theouter end of the tube, there is. mounted on the tube a supplementarynozzle 17 which substantially conforms in shape with the mam nozzle 2,but its mouth 20 is smaller than the main nozzle mouth. it will beobvious that air from the inlet l'can always pass through the openway 18of the supplementary nozzle, and, except when the supplementary nozzleis in its outermost position, aircan also pass through the way 19between the supplementary and main nozzles.

In Figs. 3, 4 and 5 the main features of construction are the same. Theburner shown in those figures comprises a casing 21 having a similarnozzle 22 connected with the air inlet 23, which is controlled by avalve 25, the nozzle contracting, as in the other figures, toward itsmouth 24. In this form of burner a sleeve 26 is secured in the casing bya set screw 27, and is provided at its inner and outer-ends with packingrings 28 secured by glands 29. The hero of the sleeve is enlarged forpart of its length to form a chamber 30 which communicates with an oilinlet 31. Axially slidable through the sleeve is a tube 32, the passagethrough which is contracted at its outer end within the nozzlepreferably by means of nipples 33. The end of the tube is substantiallyconical but is formed with fiat sides 34. The portion of the tube withinthe chamber 30 is formed in its wall with a plurality of holes 43, andthe passage through the tube is controlled by a needle valve 35 Theouter end of the tube bears a packing gland 36 through which the needlevalvestem extends. A screw 87 rigidly secured to the sleeve 26 isengaged by a nut 38 connected with the tube 32 preferablyby a pair ofapertured ears 39.

A supplementary nozzle 40 substantially conforming in shape with thenozzle 22, its mouth 41 being smaller than the mouth 24 of the mainnozzle, is secured to the outer end of the tube 32 and surrounds the endthereof. Interiorly the supplementary nozzle is formed with a pluralityof vanes 42 which are formed substantially as parts of helices.

Tn. the a ration 02 either fem of the burner the main air supply iscontrolled by the gate in the air inlet, and the flow of oil "iscontrolled by adjustment of the needle supplementary nozzles contracttoward their mouths, with the mouth of the supplementary. nozzle beinsmaller than the mouth of the main nozz e, the supplementary noz- -zlein'its outermost position will close'the main nozzle mouth, and all ofthe air will be forced through the supplementary nozzle. When, however,the supplementary nozzle is retracted from its outermost position airmay pass around as well as through the supplementary nozzle. When thesupplementary nozzle is in its outermost position it substantiallyconstitutes an elongation'of the main nozzle with a continuation of thegradual reduction in size from the main nozzle mouth to thesupplementary nozzle mouth, so that a smaller and more intense flame issecured. As' the supplementary nozzle is retracted and the air allowedto pass around as well as through the supplementary nozzle, theeflective area of the nozzle mouth is gradually increased, because thefurther the supplementary nozzle is retracted the more extensive is thespace open around it for the passage of air.

The provision of the adjustable supplementary nozzle in connection withthe adjustable air and oil inlets provides for a complete control of thecombustible mixture at the orifice of the burner and for a completecontrol of the size and intensity of the flame. In the form, of burnershown in Fig. 3 the tube carrying the supplementary nozzle has a bearingfor a considerable part of its length in a sleeve which is itself bodilyremovable from the casing.

The thoroughness of the mixture of oil and air is assured in the form ofburner shown in Figs. 3, 4'and 5 by providing the supplementary nozzleinteriorly with helical vanes which swirl the air as it flows past theend of the oil tube, while in the form shown in Figs. 1 and 2 the .sameresult is attained by dispersing the oil outwardly through ivergentpassages at an acute angle to the air passages. In either case,therefore, a complete intermingling of air and oil is assured.

Other modes of applying theprinciple of my invention may be employedinstead of [the one explained, change being made as regards themechanism herein disclosed, provlded the means stated by any of the fol-Blowing claims or the equivalent of such stated means be employed. Itherefore particularly point out and distinctly claim as my invention4 1. In a burner, the combination of a cas-.

ing having an inlet; a main nozzle, circular in cross-section andgradually contracting toward its mouth, communicating with the inlet; anaxially adjustable tube secured to the casing and extending into themain nozzle; a valve for controlling the passage through the tube; and asupplementary nozzle secured to the tube and surrounding the endthereof, the supplementary nozzle substantially conforming in shape withthe main nozzle and its mouth being smaller than the mouth of the mainnozzle.

2. In a burner. the combination of a casing having an inlet; a mainnozzle, circular in cross-section and gradually contracting toward itsmouth, communicating with the inlet; an axially adjustable tubesecuredto the casing and extending into the main nozzle; a screw rigidlysecured to the casing; a nut secured to the tube and engaging the screw;a needle valve for controlling the passage through the tube; and asupplementary nozzle secured to the tube and surrounding the endthereof, the supplementary nozzle substantially conforming in shape withthe main nozzle and its mouth being smaller than the mouth ofthe mainnozzle.

3. In a burner, the combination of a casing having an inlet; a mainnozzle, circular in cross-section and gradually contracting toward itsmouth, communicating with the inlet; an axially adjustable tube securedto the casing and extending into the main nozzle; a valve "forcontrolling the passage through the tube; and a supplementary noz zlesecured to the tube and surrounding the end thereof, the supplementarynozzle substantially conforming in shape with the main nozzle and beingformed interiorly with a plurality of substantially helical vanes, itsmouth being smaller than the mouth of the main nozzle.

4. In a burner. the combination of a cas-' ing having an inlet; a mainnozzle contracting toward its mouth and communicating with the inlet; asleeve secured in the casing and formed with a chamber having an inlet;a tube axially slidable in the sleeve and formed with holes in theportion of its wall within the chamber,'the tube extending into the mainnozzle; a valve for controlling the passage. through the tube; and asupplementary nozzle secured to the tube and surrounding the endthereof, the supplementary nozzle contracting toward its mouth and thelatter being smaller than the mouth of the main nozzle.

5. In a burner, the combination of a casing having an inlet; a mainnozzle contracting toward its mouth and communicating with the inlet; asleeve secured in the casing and formed with a chamber having an inlet;a tube axially slidable in the sleeve and formed with holes in theportion of its wall within the chamber, the tube extending into "inlet;a sleeve secured in the casing and the main nozzle; a screw rigidlysecured to the sleeve; a nut secured to the tube and engaging the screw;a needle valve for controlling the passage through the tube; and asupplement-a nozzle secured to the tube and surrounding the end thereof,the su plementary nozzle contracting towar its mouth and the latterbeing, smaller than the mouth of the main nozzle.

6.- In a burner, the combination of a casing having an inlet; a mainnozzle, circular in cross-section and gradually contracting toward itsmouth, communicating with the formed with a chamber having an mlet; atube axially slidable in the sleeve and formed with holes in the portionof its well within the chamber, the tube extendingintd the main nozzle;a screw rigidly secured to the sleeve; a nut secured to the tube andengaging the screw; a needle valve for controlling the passage throughthe tube; and

a supplementary nozzlesecured to the tube and surround' the end thereof,the supplementary nozz e substantially conforming JACOB wEINrz.

Attested by Roene r M. SEE, MARY Gmnwnnrk

